LangChain vs Mastra
LangChain vs Mastra, compared side by side on 22 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: LangChain is on 76/100 and Mastra on 76/100.
Where each one leads
LangChain
- domain rating: 86/100 against 76/100
- headcount: 312 against 53
- headcount growth: +260.4% against +204.5%
- funding raised: $260M against $35.5M
- LinkedIn following: 514,641 against 6,591
Mastra
- agent readiness: 58/100 against 42/100
At a glance
| Measure | LangChain | Mastra |
|---|---|---|
| What it is | The platform for building reliable AI agents and LLM applications. | An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby. |
| Category | Agentic AI, AI Agent, Foundation Model, Large Language Model | Agentic AI, AI Agents, Developer Tools, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2022 | 2024 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | LangChain | Mastra |
|---|---|---|
| Employees | 312 | 53 |
| Headcount growthLast 12 months | +260.4% | +204.5% |
| Total funding | $260M | $35.5M |
| Latest round | Not published | Series A |
| Valuation | $1K | Not published |
| LinkedIn followers | 514,641 | 6,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | LangChain | Mastra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 76/100 | 76/100 |
| Traction | 60/100 | 70/100 |
| Team | 70/100 | 90/100 |
| Community | 20/100 | 25/100 |
| Search visibility | 84/100 | 59/100 |
| Quality | 83/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (42/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 86/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | LangChain | Mastra |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Cloudflare | Vercel |
| CMS | Webflow | Not detected |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager, Plausible | Not detected |
| Open source | Yes | Yes, 15,100 GitHub stars |
| Self-hostable | No | Yes |
Product and pricing
| Measure | LangChain | Mastra |
|---|---|---|
| Key features | Not published | AI Agent Framework, Workflows, RAG, Evals, Memory & Tool Selection, Open Source & Modular |
What users say
| Measure | LangChain | Mastra |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 5.0/5 from 1 vote |
LangChain vs Mastra: common questions
Which is better, LangChain or Mastra?
Both score the same on our 0-100 rating, so the choice comes down to the 22 data points in the tables above rather than overall company strength.
How do LangChain and Mastra compare on the numbers?
LangChain leads on domain rating (86/100 against 76/100), headcount (312 against 53), headcount growth (+260.4% against +204.5%), funding raised ($260M against $35.5M), LinkedIn following (514,641 against 6,591). Mastra leads on agent readiness (58/100 against 42/100).
Read the full LangChain review and pricing or the Mastra review and pricing. You can also browse other LangChain alternatives we track.